1897368502500 has 225 divisors, whose sum is σ = 6200161563981. Its totient is φ = 505799640000.

The previous prime is 1897368502493. The next prime is 1897368502507. The reversal of 1897368502500 is 52058637981.

The square root of 1897368502500 is 1377450.

It is a perfect power (a square), and thus also a powerful number.

1897368502500 is a `hidden beast` number, since 1 + 8 + 9 + 73 + 68 + 5 + 0 + 2 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (1897368502493) and next prime (1897368502507).

It can be written as a sum of positive squares in 7 ways, for example, as 437891886756 + 1459476615744 = 661734^2 + 1208088^2 .

It is a tau number, because it is divible by the number of its divisors (225).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1897368502507) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 619850970 + ... + 619854030.

Almost surely, 2^{1897368502500} is an apocalyptic number.

1897368502500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1897368502500 is the 1377450-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897368502500

1897368502500 is an abundant number, since it is smaller than the sum of its proper divisors (4302793061481).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1897368502500 is an frugal number, since it uses more digits than its factorization.

1897368502500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 1897368502500 in words is "one trillion, eight hundred ninety-seven billion, three hundred sixty-eight million, five hundred two thousand, five hundred".